Improvement in steam geneeatoe



N. FEYERSA FHOTO-LITHOGRAPHER, WASHINGTON. D CV @nimh ltetes stmt @frn JULES DELERY, 0F ST. BERNARD, LOUISIANA.

Letters Patent No. 61,324, dated January 22, 1867.

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TO ALL WHOM IT MAY CONOERN:

Beit known that I, JULES DELERY, of the parish of St. Bernard, and State of Louisiana, have made a new and additional Improvement to the Water Communications of Steamboat Boilers, for the purpose Vof lpreventing explosions thereof; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings and letters of reference marked thereon.

The nature of my invention consists in adding to each boiler on board of steamboats an extra check-valve besides the ordinary arrangements now used, and closing up the choke joints between the boilers,rthe object of which is to prevent the water from 'falling below the lire line, when, by some cause, the vessel rolls or eants one side, which causes the water to flow from the highest to the lowest boiler with the present arrangements.

To enable others skilled in the art to make use of my invention, I will proceed to describe its construction l and operation.

Between the top end of the feed or stand pipe and the bottom of the boiler I insert a valve-seat, a, one-half section of which is represented at Figure 4. The recess at the under part of tig. 4 enters inside of the stand pipe. The upper recess fills the hole at the bottom of the boiler. The projecting flange in thev middle serves as a gasket ring to keep the necessary distance between the boiler and the upper flange of tire-stand pipe for vmaking the ordinary cementjoint. On the upper part of a is turned the seat for the valve b, which carries at `the under part three leaf guides, (or four,) as shown in the drawings, instead of a stam; andon the top it carries astam, with a mortise, the purpose of which will hereafter be explained. A socket, D, attached to the rod E, connected at F by a socket, for facility of introducing it in the stuiling-box G on the top of the boiler. The rod E passes through a hole in the arch-bar I-I, which is a guide to steady the rod as well as the valve. The rod E is connected with lever J, having its fulcrum at I, and is connected with rod L, having a strong thread-screw working at N through the stand O, which is strongly bolted to the boilerat P and Q. The rod fL being unscrewed by means of crank R, the socket D is raised at a convenient height to allow yalve b to yield to the force `of the pump, and permit the water into the boiler, fig. 2; and, being closed immediately by its own Weight and the pressure of the steam, it will not allow the water to flow from one boiler to the other when the boat rolls to one side.' New, if the isolating valves were of the same capacity as the feed-pump valve, the boiler nearest to the pump would receive all the water; and, being separated from the others,'these would soon run empty, or be scantily supplied; and it is to obviate this that the rods L J and E and connections are added, so

that the feed-water may be regulated to each boiler. The mortise on the top of the upper stam of the valve is intended to pull up the valve, and keep it open, by means of pin'C, when it is desired to let the water out of the boiler for blowing olf or cleansing. The ls oclret D on the end of rodE serves :is a check'and a guide, as well as a rest, to keep the valve open when it is needed. This arrangement of isolating the boilers would bring a great increase of labor on the engineer if it were applied to steamboat boilers as new used; lbut it is intended to be invariably connected with the JULES DELERYS steam boilers warden, patented on the 3d of July, 1866, No. 56,017. The warden, being constantly in operation, it performs all the overseeing for the engineer, and notifies him as soon as one of the isolating valves requires to be altered, thus greatly lessening the necessary watchfulness of the engineer, and at the time removing all danger of unnoticed scarcity of water in the boiler in all circumstances, and giving the engineer perfect control of the water supply.

What I claim, and` desire to secure by Letters Patent, is-

The isolating cheqk-valve b, conneeting-rods-E and L, and leve'r J, in combination with the generator and Water-communication pipe, substantially in the manner shown and described.

J. DELERY.

Witnesses J. LANAUX,

W. BLOCH. 

